Central Piedra Buena ("CPB"), is the 620MW gas-fired plant in Bahia Blanca, which was offered for privatisation by way of a trade sale by the Province of Buenos Aires in 1997. It was one the few power assets that had not been privatised in the earlier electricity privatisations of 1993. Following a successful tender in October 1997, IPC took a 39 per cent. stake in CPB in partnership with Camuzzi while IPC's operations subsidiary undertook the role of operator of the plant.